General projects: distribution switch control equipment manufacturing; transmission and distribution and control equipment manufacturing; intelligent transmission, distribution and control equipment sales; distribution switch control equipment sales; transformer, rectifier and inductor manufacturing; mechanical and electrical equipment sales; electronic special equipment manufacturing; electronic special equipment sales; general equipment manufacturing (excluding special equipment manufacturing); refrigeration and air conditioning equipment sales; optical communication equipment manufacturing; optical communication equipment sales; optical communication equipment sales; optical communication equipment sales; electric vehicle charging infrastructure operation; computer software and hardware and peripheral equipment manufacturing; wholesale of computer software, hardware and auxiliary equipment; retail of computer software, hardware and auxiliary equipment; technical services, technology development, technical consulting, technical exchange, technology transfer, technology promotion; engineering and technology research and experimental development; data processing and storage support services; information system integration services; energy efficient technology research and development in the power industry; energy saving management services; industrial automatic control system device sales; goods import and export; contract energy management; recycling and cascade utilization of waste power batteries for new energy vehicles (excluding hazardous waste management); photovoltaic equipment and components sales; photovoltaic equipment and components sales; photovoltaics Power generation equipment leasing; battery leasing; machinery and equipment leasing; container leasing services; intelligent control system integration; battery sales; 5G communication technology services; engineering management services; parking services (except for projects subject to approval by law, independent business activities are carried out with a business license in accordance with the law). Licensed projects: First-class value-added telecommunication services; power supply services; electrical installation services (projects subject to approval according to law, business activities can only be carried out after approval by relevant departments; specific business projects are subject to the approval results)